https://devzone.nordicsemi.com/f/nordic-q-a/46455/app-timer-and-disable-softdevice-problemsHi all, I using nrf52832 and segger IDE I am trying disable softdevice and enable it while chip running. In my project, I use RTC1 for app timer. When I disable SD, I will stop app_timer relate to SD follow example ble_app_gzll. This my code en-USTelligent Community 13Wed, 24 Apr 2019 13:10:31 GMThttps://devzone.nordicsemi.com/thread/183496?ContentTypeID=1Wed, 24 Apr 2019 13:10:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9ca4e9fb-2fd9-41cb-af30-b0a1cf47f4f6Kenneth<p>Hi,</p> <p>So if I understand you correctly you can run app_timers while softdevice is enabled and disabled, but it&#39;s only if app_timer is stopped when softdevice is disabled you have an issue?</p> <p><span>You should call nrf_drv_clock_lfclk_request() after ble_stack_init() to ensure that the clock is kept running after softdevice disable, it&#39;s too late to call nrf_drv_clock_lfclk_request() after stack is disabled.</span></p> <p><span>I can&#39;t see from your above code that you have any repeated times though.</span></p> <p><span>Best regards,<br />Kenneth</span></p><div style="clear:both;"></div>